Re: 30/06 and Varget. etc??
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Gilly</div><div class="ubbcode-body"> Re: 30/06 and Varget. etc?? [Re: Gilly]
NineHotel
Comes w/ KungFu Grip
Registered: 03/15/05
Posts: 5978
Loc: WAY off base (COS CO) Yes, if you want 308 velocities out of your 30-06, by all means switch to 4895.
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Nine Hotel by all means give me a better option for 150 grain bullet that off of BOOK data is hands down better than 4895? The only one of Hodgdon, IMR, and Win that is faster for the bullet he is going to use Nosler 150 BT is IMR 4320 by 7 whole FPS. Pretty tough to beat it until 165 grain bullets and heavier. I don't know much on RL or VV powders but if your going to make a comment at least give me a reccomendation of what is better. This is going off of book data not pet loads in a particular rifle that differ from one to another that handle pressure better than others.
As for 308 velocities, IMR 4895 in 30-06 is faster than the best 308 powders for each given bullet weight up till 175's.
110 grain 150 fps faster
125 grain 130 fps faster
130 grain 85 fps faster
140 grain 108 fps faster
155 grain 100 fps faster
165 grain 115 fps faster
168 grain 100 fps faster
175 grain 14 fps slower
Granted these are not huge gains but I would not consider them 308 velocities as you called them when they are mostly all better by over 100 fps. So unless you have a RL or VV powder that you can give me that CONSISTANTLY is better your comment does not have much merrit in my book. From what I have read RL-xx whether 17,22, or 25 are very temperature sensative if I'm not mistaken? From alliants website RL-17 and RL-22 are very similar to velocities shown for IMR 4895 with the loads they give so I would like you to give me your secret to outrun the 308 by more than 100-150 fps. </div></div>
This is where reality and experience collide with the internet and book data.
A preface: Ammunition manufacturers and reloading manuals do not know the type of rifle you are driving and therefore must offer things that will operate safely in ANY firearm that has been factory produced for the 30-06 cartridge. That includes the venerable M1 Garand and lets say a Remmy 760 auto loader. There is a significant difference in what you can do with a bolt gun vs a gas gun w/o breaking it.
IMR 4895 (canister) was used to load M2 ball and match ammo for a good many years the reason being that it is what was available and it drove the 147gr FMJ boolet at decent speeds w/o bending the op rod of the Garand. It is also responsible for the wives tail that the 30-06 is "slightly" more powerful than the 308 shooting the same boolet. It has to do with PORT PRESSURE not chamber pressure. Significant difference.
With the 150gr fmj currently available there should be no reason you cannot achieve velocities well above the 3100fps range with the appropriate powder. Those loads WILL break a gas gun, BUT we're talking about bolt guns.
FWIW and IMHO: 4350 (either one) is the powder I have found to work best with mid to light boolet weights 150 - 170ish. I still use it today for my whitetail hunting loads with 168 CT's and 165's of various flavors and drive them on the ragged edge of 3K fps. Be warned you CAN get too much powder in the case, so pay attention.
I would play with the 4831 to see if you can get better case fill vs performance but I have not personally tried it. It does work exceptionally well in a 280AI tho...
Cheers,
Doc